Document Type : Original Article
Authors
1 Prof. and Head of Poultry Diseases Dept. Faculty Vet. Med. Beni Suef Univ.
2 Ass. Prof. of Poultry Diseases Dept. Faculty Vet. Med. Beni Suef Univ.
3 Prof. and Head of virology Dept. Faculty Vet. Med. Beni Suef Univ.
4 Medical Representative
Abstract
Main Subjects